Machine for operating on shoe-bottoms



E. ERICKSON. MACHINE FOR OPERATING 0N SHOE BOTTOMS.

APPLICATION FILED JUNE 4. I9I7.

Patented Apr; 5, 1921.

7 SHEETS-SHEET I.

AWE/v m? E. ERICKSON. MACHINE FOR OPERATING 0N SHOE BOTTOMS.

APPLICATION FILED JUNE 4. 1917. v 1,373,553. Patented Apr. 5, 1921.

I SHEETS-SHEET 2.

Wl/[NTUR E. ERICKSON.

MACHINE FOR OPERATING 0N SHOE BOTTOMS.

APPLICATION FILED JUNE 4, I917.

Patented Apr. 5, 1921.

7SHEETSSHEET 3.

E. ERICKSON.

MACHINE FOR OPERATING 0N SHOE BOTTOMS. APPLICATION FILED JUNE 4. 1917.

1,373,553. Patented Apr- 5, 1921.

E. ERICKSON.

MACHNE FOR OPERATING ON SHOE BOTTOMS.

APPLICATION FILED JUNE 4. 1917.

1,373,553. Patented Apr. 5, 1921.

7SHEETSSHEET 5- Avg/Wm? E; .ERICKSON. MACHINE FOR OPERATING ON 5505 BOTTOMS. a

APPLICATION FILED JUNE 4, 1917.

1,373,553. PatentedApr.5,1 921.

7 SHEETSSHEET 6- E. ERICKSON. MACHINE FOR OPERATING ON SHOE BOTTOMS.

APPLICATION FILED JUNE 4, NH].

Patented Apr. 5, 1921.

7 SHEETS-SHEET 7- UNITED STATES PATENT O FICE.

EDWARD ERICKSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON SHOE-BOTTOMS.

Specification of Letters Patent.

Patented Apr. 5, 1921.

Application filed June 4, 1917. Serial No. 172,658.

To all whom it may concern:

Be it known that I, EDWARD ERICKSON, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating on Shoe-Bottoms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for preparing welted, unsoled shoes for the sole laying operation. Such machines are known commercially as welt butting machines and, as is usual in such machines, the invention includes devices for positioning the welt ends for the butting operation, for producing a bevel or scarf on each welt end, and for securing the upper to the insole at the point where the welt ends are butted.

Oneobject of the invention is to improve and simplify the mechanism for producing a scarf on the welt ends to enable it to operate at a greater speed than has heretofore been practicable, while at the same time performing the desired operations in a more efficient manner and with less expenditure of power. Another object of the invention is to improve the construction and adaptability of the devices for positioning the welt ends to shoes of different sizes and styles.

A still further object of the invention is to improve the construction and mode of operation of the tacker mechanism employed to secure the upper to the insole in a machine adapted to perform both the welt butting and tacking operations, providing for its operation at increased speed, with greater efliciency, and with less loss of power.

The novel features of the improved tacker mechanism per so are not claimed herein since a tracker mechanism of the kind disclosed, whether or not embodied in a machine having a welt buttin mechanism, is claimed in an application Ser. No. 342,406, filed December 4, 1919, by the present inventor as a division of this application.

To the accomplishment of these objects and such others as may hereinafter appear, as will be apparent to those skilled in the art, the features of the invention relate to certain devices, combinations and arrangement of parts hereinafter described and par" ticularly pointed out in the appended claims.

The preferred form'of the invention is illustrated in the accompanying drawings, in which:

Figure 1 is a perspective of the head of the machine;

Fig. 2 is an elevation of the left hand side of the entire machine with certain portions of the frame broken away to disclose certain parts of the operating mechanism;

Fig. 3 is a sectional plan on the line 33 of Fig. 2 of the operating mechanism for the welt butting knives;

Fig. 4 is a detail in perspective of a portion of the actuating mechanism for closing the heads or swinging side frames which support the butting and tacking mechamsm;

Fig. 5 is a detail in elevation with certain parts of the frame broken away of the inside face of the right hand side frame;

Fig. 6 is a detail in vertical section of the lower end of the tracker mechanism;

Figs. 7, 8 and 9 are details illustrating different positions of the welt butting knives and the tacker mechanisms at differ ent times during the welt butting and tacking operations, these views being similar to that of Fig. 5; i

Fig. 10 is a vertical section of the driving shaft and its actuating mechanism on the line 10-10 of Fig. 2; V

Fig. 11 is an end elevation of the clutch and clutch operating mechanism at the right hand side of the machine;

Fig. 12 is a detail of the clutch in vertical section, illustrating the mechanism permitting the driving shaft to be rotated by hand power;

Fig. 13 is a vertical section of the tack pot and its operating mechanism, and

Fig. 14 is an exploded View of the welt positioning device carried by the right hand side frame.

In the embodiment of the invention illustrated in the drawings and referring first to Fig. 1, the machine is provided with mechanism for positioning both welt ends for the butting operation, mechanism for butting both welt ends simultaneously and mechanism for thereafter inserting tacks to secure to the insole the upper which has been lasted in by the welt positioning operation. These various devices are mounted upon a head supported upon a column 15, the head having a forwardly projecting goose neck 17 a:

the front of which are j ournaled vertical pivot rods 19 and 21 (Figs. 2, 3 and 5) on which are supported the swinging sidewhich extends transversely of the head-and is journaled in bearings'35 and 37 (Fig. 10) at the rear of the machine provided beneath the guard plate 39 (Fig. 2). The driving shaft is normally at rest but may be con nected at the will of the operator to a power shaft' ll which is continuously driven by a belt running over a pulley 43 (Figs. 1 and 2).

As is usual in machines of this character, the shoe is supported and positioned vertically for the welt butting and tacking operations by means of thin plates, usually termed welt supports, which are inserted in the welt crease at each side of the shoe substantially at the rear end of the inseam.

Each of the swinging side frames 23 and 25 carries one of these welt'supports. The welt support 45 for the left hand side frame is best illustrated in Fig. 1 and the welt support 47 for the right hand side frame is best illustrated inFig. 5, while both of these supports are shown in dotted lines in Fig. 3, in position beneath the welt ends. It will be understood that, as is. usual in this type of machine, the welt supports are forced into the welt crease by the inward movement of the swinging side frames 23 and 25 about their pivot rods 19 and 21. The consequent pressure exerted on the welt crease by the welt supports causes the upper, just in advance of the heel seat tacks, to be properly lasted in. p 7 p In order to position the shoe for the proper engagement of the welt supports with the welt crease, the machine is provided with a back gage which may be adjusted longitudinally so as to locate the heels of shoes of different sizes properly for the inward movement of the welt supports. Referring to Fig. 2, the lower portion of the machine head is provided with a bracket 49 in which are formed horizontal ways 51 (see also dotted lines Fig. 3), within which the shank 52 of the back gage 53 can slide.

- Depending from the shank of the back gage is a. pin 55 carrying a roll56 which is en-. gaged by the forked end of a lever 57, eX-

-(dotted lines Fig. 3).

tending horizontally to the right, and loosely pivoted upon a vertical pivot pin 59 depending from a horizontal-arm61' which is a part of the bracket at9'and extendsto the right beneath the side frame 25 :(Fig. 1). At its outer end the arm 61 supports a lock plate 63 by means of-a bolt which seats in a recess in a shank pin 62 set into the arm The lock plate 63 has a slot 65 which extends on an arc struck from the pivot pin 59 as a center. The slot is covered by a thin brass plate 64. .A second lever 67, below the lever 57 (Figs. 1 and 3), is fulcrumed at its inner end on'the pivot pin 59 and .is provided intermediate The lever 57 is clamped to'the lever 67 by means of a screw bolt 71 which passes up wardly through the slot of the lever 67 and is threaded into the outer,'or right hand end, of the lever 57. The bolt carries, o1r-its lower end, a wing nut 73. Beyond the head 69 the lever 67 extends farther outwardly and is providedwith a handle 72 (Fig. 1) which handle carries apointer75overlapits length with a head 69 having an arcuate slot struck from the pivot pin 59 as a center.

ping the brass plate 6& on theblock 63. The Y handle portion 72 of the'lever 67 is provided with a locking device comprising a pressure piece 77 loosely pivoted at 79 on the handle 72 and normally held away from the handle by a coilspring 81 interposed between the end of the pressure piece andv the handle. The inner end of the pressure piece extends beneath the block 63 and is provided with two angular gripping faces 83 and 85, .shown in dotted lines in Fig. 3, which are so constructedas to normally bite into the vertical sides of the rib formed at the outer edge of the block 63 by its slot 65, and thus hold the back gage 53 in any-desired position of adjustment. Asshown best in Fig. 3, the two sidesof theangle comprising each gripping face 83 and 85 are of unequal length and the apexes of the angles not opposite each other becausethe shorter side of each angle is oppositeithe longer side of the other angle. By .constructing the angles so that .theapexon the gripping face 85 is at the same side of the center line of the. lever 67 as is thespressure piece 7 7 the skilled mechanic will recognize that pressure on 77 from the spring 81 will cause the gripping faces to bite and hold the lever 67 against forward movement, while a movement of 77 toward the handle 72 will withdraw both faces from engagement with the block 63 and permit freefor lever 57. is also moved and the back gage is slid in or out of its ways 51. The brass plate 64 will be provided with index marks to which the pointer 75 may be brought for positioning the back gage to properly locate the welt butts on different sizes of shoes. In factories where the index marks on the plate 61 do not give a correct location of the back gage for the particular style of shoe which that factory manufactures, an adjustment of the lever. 57 relative to the lever 67 by means of the adjusting connections through the head 69 will compensate for such variation in style whenthe pointer 75 is brought to the index marks already provided.

The forward ends of the swinging side frames 23 and 25 are normally held apart by means of a spring 87 (Fig. 3) the ends of which are attached to pins projecting from the rear ends of the side frames. In order that the two frames 23 and 25 may move together they are provided with intermeshing toothed segments 89 and 91 respectively, through which the lower ends of the rods 19 and 21 extend. Treadle mechanism is provided to overcome the force of the spring 87 and bring the forward ends of the swinging side frames together into position to support a shoe for the operations to be performed thereon. The operating treadle 93 (Fig. 2) is pivoted at 95 in the lower part of the column 15 and is connected by a treadle rod 97 (Figs. 2 and 4) to the horizontal arm 99 of a bell crank lever pinned to a transverse rock-shaft 101 journaled in the lower part of the machine head. The vertical arm 103 of this bell crank lever is provided with a socket which receives one end of a coil spring 105, the other end of which bears in a socket formed in an arm 107 which projects upwardly and has two legs 109, one at each side of the bell crank 99-103, by means of which it is loosely pivoted on the rock-shaft 101. The upper end of the lever 107 is provided with a horizontal head (Fig. 4) in each end of which there is formed a socket 110 for the reception of the inner ends of struts 111 which extend between the head and sockets 113 (Fig. 3), for their outer ends, formed at the rear ends of the swinging side frames 23 and 25. The treadle is normally held raised by a spring 115 (Fig. 2) connecting it to the column 15 so that normally the spring 105 is not under tension. lVhen the treadle is depressed, however, the lowering of the treadle rod 97 operates through the bell crank-lever 99-103, and the spring 105, to move the vertical arm 107 to the left (Fig. 2) which operates on the inner ends of the two struts 111 so as to bring the struts into a position approaching alinement, and consequently forces the rear ends of the side frames apart, stretching the spring 87, as

is shown in Fig. 3. This outward movement of the rear ends of the side frames causes an inward movement of their front ends and brings the welt supports into the welt crease of the shoe which has previously been placed with its heel against the back gage 53 and which is held by the operative at a proper height to receive the welt supports in the welt crease.

If the forward ends of. the side frames were always opened to their fullest extent by the spring 87 a considerable inward movement would have to be imparted to them in order to engage shoes of the narrower widths. In order to obviate the necessity of such an extensive movement a stop is provided for limiting the outward movement of the forward ends of the side frames which may be adjusted so as to provide an opening movement commensurate with the width of the shoe to be operatedv upon. This stop is best shown in Fig. 3 and comprises a screw 117, threaded into the rear portion of the side frame 25, and provided with a head 119 adapted to engage a wear plate 121 carried by a portion of the segment 89 on the side frame 23. The head 119 may be adjusted toward and from the plate 121 by means of a hand wheel 123 outside of the side frame on the end of the screw 117 (Fig.

1). The distance of the head 119 from the wear plate 121 obviously determines the amount which the forward ends of the side frames can open under the influence of the spring 87.

It will be observed that on pressing the treadle 93 only so much pressure can be placed upon the welt crease by the welt supporting plates as is permitted by the strength of the spring 105 (Fig. 1) for, as soon as the pressure equals the strength of the spring, the spring will begin to compress without further movement of the arm 107 or further straightening of the toggle formed by thestruts 111. The strength of the spring 105 may be varied by an adjustment of a threaded block 106 (Fig. 4:) to suit the strength of the material which is being. operated upon. Continued depression of the treadle will, however, continue to rock the shaft 101 which movement sets in motion the driving mechanism for operating the moving parts of the machine, such parts comprising the welt butting knives, the tacker mechanisms and the tack delivering mechanism contained within the tack p Referring now more particularly to Figs. 2 and 10, the power shaft 41, which extends longitudinally in the machine and is supported in a journal at the rear of the machine head, carries intermediate its length a spiral gear 125 which drives a second spiral ing upon the driving shaft 33. Connected by a suitable driving jointtothe' hub 129 is a sleeve 131, which forms the bearing-for aHorton clutchj This'clutch, as is usual, is providedwith a clutch ring 133 formed "as a part of the bearing sleeve 131, a cam mm; 135 which is keyed to the driving shaft 33, a roll carrier 137 with itsarolls 139,: interposed between the clutchringand cam ring, and an operating spring 141' (dotted llnes "Fig. 11). It is thus seent-hatthe spiral gear hub 1 29 and clutch ring hub 131 form "a hollow shaft which is continuously driven from the power shaft. Interposed between ithedriving shaft bearing 37 and the spiral gear 127 is a suitabletthrust bearing 143. Intermediatethe .two bearings 35--and 37 of the driving shaft '33 and located on the median line or the two swinging-side arms is a crank 145(Figs. 2 and 10), therotation of which, through cojnnectionsto be *described later, operates the welt butting knives and the tacker mechanisms. At the left hand end of the shaft 33 outside-the machine frame, there'is secured a disk 147 which carries a wrist pin 149 to which is connected, by the yoke shown inFig; 2, a pitman 151 which through itsreciprocations operates the mechanism for delivering tacks to the tack; tubes for;-delivery to the 'tacker nozzles.

On the righthan'dend of the-rock shaft 101 isanarm 153 (Figs. 1 and'11)' which carries an adjustable tappet 155. 'VVhen the shaft 101 is rocked sufiiciently by pressure on the treadle 93, the tappet 155 engages the forwardly projecting arm 157 of a three-armed lever pivoted loosely upon a horizontal stud 159(Figs. 10and 11) carried by the machine frame, and the'movement thus imparted to this lever causes'the Horton clutch to become engaged, to rotate the driving shaft 33through a single revolution, by means now to be described. The rearwardly'projecting arm 161 of the' threearmed' lever has pivoted thereto, by its lower end, an upwardly projecting rod 163 which passes through a yoke formed'at' the forward end of a horizontally disposed lever 165 pivoted upon a secondstud 167 threaded into the machine frame. The lever 165 carries, at the rear side ofthe stud 167, an arm 169 which supports the usual yielding buffer'171 adapted to be engaged by'the usual stop shoulder on the Horton clutch at the time the clutch is disconnected. The lever 165 also has secured thereto a tooth 173 which is engaged by a shoulder 175 out in the rear edge of the vertical rod 163. A spring 177 connected at its forward end to therod 163 and at its rear end totthe buffer supporting arm 169 normally holds the buffer in positionv for stopping the clutch and. drawsthe rod 163 rearwardly into engagement with the tooth 173. A second spring 179 connected at its forward end recreate to l the thirdarm" 181 "of the three '-.armed "leverhereinb'efore'referred to, and by its rear end to a pin 183(Fig. 10) carried'by the machine frame normally maintains the ing bolt'193:(F-ig. 11). A cap plate" holdsall of these parts in place on thestud 167. It is readily seen that with this'construction whenever the buffer armf1'69'is thrown inward to disconnect the Horton clutch the eccentric? bearing 189 is'rotated and moves thebrake shoe 187 into enga'ge .ment with the brake wheel 185, and vice versa a movement of the buffer arm'169 to the right, in Fig. 11, to permit-the clutch to'operate will, by a reverse rotation of the eccentric mounting 189, withdraw" the brake shoe from the brake wheel. By loosening the cap plate 195 andthe bolt 193 the eccentric bearing may be adjusted angularly as may be necessary to increase its throw whenever it becomes desirableto do this by reason of wear of the parts of the brake.

The operation of' these parts will be understood best from Fig. 11; it being apparent that when'the tappet155 descends um V three-armed lever is rotated on its pivot in a direction to raise the rod 163, and conse 'quently through engagement of the. shoulder 175 with the tooth 173 rock the lever 165 in a direction to withdraw the buffer 171 from its engagement with the stop of the Horton clutch. Simultaneously with this movementthe brake is released andthe spring 141 of the Horton clutch moves the roll carrier in a direction to cause the rolls to bind and drive the shaft 33.

It it not desired, however, that it be necessary for the operative to maintainhis foot on the treadle while the driving shaft is rotating and the welt butting and tacking mechanisms are being operated; Some means must be provided, therefore, for locking the'swinging side frames in the position to which-they have been moved by the depression of the treadle. 'Such' a locking mechanism is illustrated in Fig. 2 and comprises a vertical arm 196 secured to the rockshaft 101 having'pivotedto its upper end the forwardend of a rectangular rod 197, the

rear end of which extends through a rec' tangular opening in an arm199, depending 1 from, and pivoted freely on, a horizontal stud 201 carried by the machine frame. The free end of the arm 199 is normally pulled forward by a spring 203 connected between the arm and the frame. lVhen the machine is in a position of rest a pin 205 on the disk 147 at the end of the driving shaft is in engagement with an upwardly projecting ear 207 carried by the arm 199 and maintains this arm in such position that the rod 197 can slide freely through the rectangular opening in the arm. As soon as the driving shaft 33 begins to rotate, however, the pin 205 is removed from its engagement with the ear 207 and this permits the spring 203 to rock the arm 199 to an angular position with relation to the rod 197 whereby the corners of the opening in the arm above and below the rod will bind on the rod and act as a lock to prevent the rock-shalt 101 from rotating under the influence of the extended treadle spring 115.

In order to hold the rotation of the driving shaft to a single revolution, the rollcarrier 137 of the Horton clutch is provided with a radial. pin 209 (dotted lines Fig. 11) which, on the clockwise rotation of the driving shaft 33, engages the upper end of the rod 163 pushing this red forward about its pivot and withdrawing the shoulder 175 from beneath the tooth 173. The spring 177 immediatelyv acts to pull the clutchv buller 171 into position to be engaged by the clutch stop at the same time applying the brake by reason of the angular movement impartec, bythe movement of the lever 165, to the eccentric brake. bearing 189. Immediately after this operation the pin 205 on the disk 1417 (Fig. 2) engages the car 207 of the lock arm 199 and turns this arm to, a position normal to the rod 197 so as to release the clutch operating tappet 155 tothe influence of the spring 105 and also the side "frames to the influence of the treadle spring 115. Consequently, the tappet 155 is withdrawn from its engagement with the three-armed lever, the spring 179 is enabled to return the clutch operating parts to the position shown in Fig. 11, and the spring 87 which connects the rear ends of the side frames operates to open the frames about their pivotrods 19 and 21 and thus release the shoe from its engagement by the welt supporting plates 45 and 47. In the meantime, during the single revolution of the driving shaft, the two welt ends have been butted and two tacks, one at each side of the shoe, have been driven. V

The mechanism for supplying tacks to the usual tack nozzles beneath the tack drivers will now be described. Referring more particularly to Fig. 13, the tack pot 27 comprises a casting21l, secured to the bracket 29,-which sustains the double raceway 213, the tack picker 215, the tack picker block 217 through which tacks i are dellvered by the picker to the tack tubes 219,

the oscillating, cylindrical tack pct 27 proper, and'a tack receiving pan 223 is so located on the end of the raceways 213 that oscillations of the tack pct 27 will cause its shell 225 to pickup and drop tacks upon the pan in the usual manner. The tack pot 27 is oscillated by the reciprocationsof the pit man 151 (Fig. 2) driven by the Wrist pin 149. The upper end of the pitman is con nected, by the yoke shown in Fig. 2, to the horizontal arm 227 of a bell crank lever secured to a rock-shaft 229 (Fig. 13) which is journaled at its ends in the bracket 29 and thecasting 211. The vertical arm 231 of this bell crank is provided with a toothed segment which meshes with a pinion 233 secured to the rear end of a second rock-shaft 235 journaled inthe bracket 29 which carries the tack pct 27 at its forward end. With this construction the rotation of the driving shaft 33 causes an oscillation of the tack pot and a consequent delivery of tacks a to the raceways 213.

The tack picker 215, which is a plate hav ing oblique tack picking slots of the usual construction adapted to simultaneously engage and separate one tack from each race- -way, is reciprocated by connections with the 7 two ends of the tack picker slide 221 com prising depending arms 237 (Figs. 1 and 13). The slide 221 is T-sh aped in cross-section and slides in a way formed below the raceways 213. The lower face of the slide 221 is provided with teeth which mesh with a toothed segment 239 secured to the forward end of the rock shaft 229. Thus, at

each oscillation of the tack pot 27 the picker plate 215 is advanced to separate two-tacks and then withdrawn to its inactive position inwhich position it retains the remaining tacks in the raceway as is usual. The picker block 217 may be removed so as tobbtainaccess to the raeeways by lifting the hook 241 i H (Figs. 1 and 13) from the pin 2&3, which is secured to the lower endof the raceway and projects outwardly, centrally through the picker block, and then sliding the block off the pin. The removable block217 has secured to its upper side a double slotted plate 218, forming an extension of the raceway j and lying 'just above the picker plate 215,

which plate 218 is somewhat longer than the block 217 to provide a proper jointure with the raceway, all as shown in Fig. 13. The

lower end of the cover plate of the raceway is constructed in the form of a spring. pressed gate 2415, as shown in Fig. 13, which may be lifted for purposes of inspection.

The raceway is also provided with a tackclearing. mechanism, shown best in Fig. 13, journaled in bearings 246. At each side of the casting 211 are. pins 247 eccentric-ally mounted at each end of'a rotary shaft 249 onwhich shaft are secured theclearer blades 251. Each pin 247 has mounted thereon a pinion, 253 adapted to beengaged by vertical racks 2'55, moving in guides 256 at each side of the casting 211, (see also Figs. 1 and 2) which are connected attheir'lower ends by links 257 to the armsof a lever 259 which lever 259 are permitted. to drive the shaft 249 continuously A in one direction. The shaft 249 is provided, at oneend with an ear 261 (F ig.,13), which has a pin 263 projecting outwardly into alguide slot cut'in the inner wall ofthe casting 2l1 which con strains themovement of the clearers 251to the usual oscillation lengthwise of the races ways. One of the pins '247 -is extended and carries a hand Wheel 248 by means of which the shaft 249 may be rotated whilefthe machine is idle.

The tack potlisprovided with a spring pressed door265 in its. rear face. (Fig. 13) through which: itmay be. emptied of its tacks into the shelf I267. The casting 211 is also provided with a door,269 at, its top through whichinspection may be had of the parts inside,;an d with a waste tack receiving shelf 271. V g pp The shoe having been positioned bya de pression of the treadle, .the driving shaft having been connected. to the power shaftby,

the actuation of the driving. shaft clutch, and a tack having, ,on thepreviousoperation, beendelivered to each of the tack tubes 219, the welt is then butted and subsequently tacked by the instrumentalities now tobe described.

Referring first to Fig. 2', the crank 145 of the driving, shaft 33dsconnected by apitman 272 to a piston 275 which is guided within a cylindrical way 277 east centrally in the lower part of the goose neck17. Projecting from the forward end of the piston 275 is aconnecting rod 279 (Fig.2) provided with aniH-shaped head 281 (see dotted linesFig 3) whichlieshorizontally with.

the legs. ofthe H pointing putwardly toward theside .frames 23 and 25. The slots 283 and 285 formed between. the. legs of the. H carry cubical slideblocks 287 and, 289.. whichare drilled vertically, for. the receptionuthere. through of vertical .pins,..carried-. by the welt butting knife operating..slides 291. and 293.

With: this construction a .rotationnof the.

the guides for the slides 291 and 293 are crank 145 to withdraw the piston 275 within its. guideway causes theslides 291 and 2931 to withdraw and operate the welt butting and tacking mechanism.

As the side frames 23 and 25 which form usually at an angle to the line of movement of the piston 27 5, the slots 283: and 285 in the head 281 provide for an outward movement of the-connecting blocks 287 and 289 as the slides are withdrawn. Since the mechanism carried by each of the side. frames is identical, it will be sufficient to describe the mechanism'at one side only.

The mechanism upon the side frame 25-at the right hand side ofthe machine will be. used for this purpose.

Referring more particularly, to..Fig,.,'5,' which illustrates the various mechanisms on the side frame 25 in a position ofrest', the

weltabutting. knife slide293 isconnected to the block 289 by a pin 295, which extends between two inwardly projecting cars} at. the rear end of the slide... The slide rests upon a flattrack, or way, 297 formed at thelower; end of the side frame '25..- The slide is T-.

guided during. its. rearwardimovement lby theside walls of the swingingv frame which arerecessed to overlap. its T-head. (see. broken away parts of Fig. 2). The upper part of the slide 293 is channel shaped (Fig 14),for the. greater portion of its length. and its-side wallsare out and drilled atitwo separate... pointsv for the. reception of the lower cylindricalends of twolinks 299. The upper ends qfthese links are received in similar openingsformed in a channel shaped welt buttingknifecarrier 301 (Fig.

5). but. the link openings in the carrier are farther. apartthan .those in the slide as,

shown in Figs. 7 to 9. This mounting. of

'the knifecarrier permits it tobe rocked back and .forth relativextothe knife slide to lowerand raise. the welt butting knife relative. to the shoe. Themovement in a rearward dircctioaris limited by'the end of.

the carrierabutting against. a shoulder 303 (Fig. 9) formed on the slide. and a move mentina forward-direction is limited by. the engagement of an adjustablestop screw 305(see Fig. .7) with the surface :of the nose 307 of :the slide. The welt butting knife-309 which extends inward laterally from the carrier (seeFig. 3) .isclamped to the end v of thecarrien in a dove-tail slot by. means of a block 311 (Fig.5) having a pinlexe.

tending forwardly through a downwardly projecting portion .of the end of .the carrier and securedin place .by a-nut. Just in front of the knife is a welt'presser313 (Fig- 3) .which is provided. with a shank-315. extend ing upwardly through a guideway formed: for: its reception in the carrier301 (Fig.

90 shaped in. cross-section (Fig.1 14) and is;

Since the. welt butting-knife, during its cuttacks which may havein advertently been left in the shoe in the path of the welt butting, knife. V

The welt supports 45 and 47 hereinbefore referred to are supported adjustably, to accommodate varying styles of shoes, at the forward ends of the swinging side frames 23'and 25 just below the nose 307 of the welt butting knife slide 293. The mounting of these supporting plates is best shown in Fig. 14 which illustrates the welt support 47 for the side frame 25. The welt support is provided with a curved, dove-tail projection 319 which fits into a curved dove-tail guideway 321 formed in the inner face of a welt plate holder 323. The holder 323 is provided with a horizontal pin 325 which is received in a bore made for its reception in an adjustablelwelt plate block 327which in turn has a horizontal pin 329 received in a bore 331 extending longitudinally in the front end of .the side frame. The block 327, and consequently the welt supporting plate 47, may be adjusted longitudinally of the shoe by turning the collared adjusting screw 333 (see Figs. 5 and 14) which fits in a slot in an ear 334 depending from the block 327. After having been adjusted the pin 329 is held from movement by the locking pin 335. The welt supporting plate 47 may be adjusted transversely of the shoe, if desired, by loosening the locking pin 337, which binds on the pin 325, and then moving the holder 323 across its supporting shelf 338. The welt plate holder has formed integral therewith a guard plate 339 which extends over the heel seat of the shoe, as best shown in Fig. 3, and over which the welt butting lmife 309 travels after the welt has been severed. In or der to produce a scarf or beveled end on the: end of the welt, the surface of the supporting'plate 47 is set at anangle to the surface of the guard plate 339 (see Fig. 5) as is usual in machines of this type. This angular position of the welt supporting plate may be altered to obtain any length of scarf that may be required by loosening the set screw 341 and shifting the welt supporting plate angularly in its guideway 321, it being understood that the sides of this guideway are formed on arcs of circles hav ing the joint between the welt supporting plate and the guard plate as a center.

ting stroke, travels in the plane of the surface of the guard plate 339, it will be ob-- vious that a welt end which lies in contact with the welt supporting plate 47 will be severed on a plane passing angularly from one surface of the welt to the other, the in-' clination of the cut to the surface of the welt being determined by the inclination of the welt supporting plate relative to the guard plate.

Since the movement of the welt butting knife slides 291 and 293 also actuates the tacker mechanism, a description of the op eration of the welt butting mechanism will be deferred until the tacker mechanism has been described. Referring still to Fig. 5 for a disclosure of the tacker mechanisms, the forward edge of each swinging side frame is grooved vertically to form a rectangular way 343 whichis closed by a face plate 345 (see also Figs. 1 and 2). Within this way is seated, for vertical sliding movement, the

driver slide 347. This slide 347 is bored longitudinally for the greater part of its length for reception of the cylindrical driver. bar 349. At its lower end the slide 347 is provided with a reduced bore through which the tackdriver 351 extends (Fig. 6).

The tack driver is secured to the lower end of the driver bar by a nipple 353 in the usual manner. Also the lower end of the driver slide has secured thereto, by a second nipple 355, a suitable tack nozzle 357. At its upper end the driver bar is provided with a head 359 (Fig. 5) the rear end of which is bifurcated and embraces the two'sides of a vertical track 361 formed on the side frame. A roll is carried by the head 359 which engages the track 361 and guides the bar inits movement through the driver slide. The extreme upper end of the driver bar carries a conical cap 363 which is engaged by a socket on one end of the coiled driving spring 365. The other end of the driving spring is connected to a block 367 having a pin secured in a bearing'369 (see Fig. 2) at the rear side of the driver slide. Pivoted by its lower end, at 371, in a vertical slot formed for its reception at the upper end of the face late 345 is a lever 37 3 (dotted lines Fig. 5 carrying at its upper end a roll 375 which isnormally heldin the path of movement of the driver bar head 359 by a means of a spring-pressed pin 377. The inward movement of the lever 373- is limited by an ear on the lever engaginga stop pin 381 mounted in the face plate. The driver head 359 is provided with a beveled surface 383 so located that on the upward movement of the driver bar the roll 37 5 is roll snaps back beneath the head and supports the driver bar against downward suitablybolted on, and a similarcover plate rovidedfor the side frame 23 (see Fig. 2 Referring now-particularly to Figs. 7 8. and 9, andremembering that the moving away from the operative, which'causes the 1 of the driver'ba'r slide just above the-nozzle movement. The lever '37 3 is also-provided with a cam piece 385 which projects into the path of and isadapted to be engaged by a cam piece387, formed at the upper end "of.

the driver. bar, slide, when said slide descends. The. purpose of this action will.

a link 395, to an arm 397 extending upwardly from and integral with, the welt butting knife-carrier'301 (see Fig. 5').

Asshown best in Fig. 1 all the moving parts just described are held within the.

swinging side frame 25 by a cOVerplate 26 parts just priorto the welt butting operation are in therelative positions shown in Fig. 5, when the driving shaft 33 com= mences-to rotate the piston 275 and its H shaped .head 281 are drawn .backwardly, .or

welt butting knife slides-291 and 293-to be drawn rearwardly. Describing now the operation of one of the knives only, as'the slide 293 is withdrawn :on its track 297, the re-' sistance offered by .the tacker mechanism causes, the links 299 to pivot about their lower ends and 'tiltithe'welt butting knife carrier 301 forward until its stop screw 305 engages the nose 307, as shown in Fig-:7.

This brings the welt presser into engagement with the welt and places the knife inthe plane of the surface of. the guard 339,

this position being determined by a properadjustment of the screw 305. Further rearward movement of the piston 275 now draws both the slide and the carrier rearwardly together causing the knife to out through and bevel the welt end. As the welt jbutting knife carrier 301 moves rearwardly; it draws with itthe link 395 and, byturnin'g the segment 391, draws the-driver bar slide 34:7 downwardly relative to the driver bar. -The tack which has: been resting in a tackway 348formed for its reception in the inner side 357, as shown in Fig. 6, drops into the nozzle when the driver bar slide has been drawn down sufficiently for the tackway to come below the lower end of the driver. The tack 'is nowin position to be driven whenever the driver is permitted to descend. -The downward movemnt of the driver bar slide acts to continually place tension upon the-driver spring 365, since the driver bar ltself is held the shoe.

from downward movement 'by 1 reason of its '1 head 359 beingabove the roll 375 01111116.

latch lever 373.v Just as: the nozzle 357 reaches the shoe, as shown in Fig. 8, the cam. 387; on the driver barsslide engages the cam 385: on the latch lever andpushes-the latch lever touthe right in Fig; 5,:so asto withdraw theroll 375 from beneath the head'359 V of the driver bar. This immediately releases the driver'bar to the action of the' nowfully tensioned drivingspring 365 and! the tack is driveninto the shoe, thezparts'at this'timeb'eing as shown innFigm8; The

crank 1 15' has now passed through a-half" revolution and the welt butting knife slide" 293 is again moved forward, first relativelyl tozthe carrier'301 which'causes therlinks299 to tilt backward until the-reap end .of' the carrier engages-the shoulder 303- (see Fig;-

9) thus-raisin-gthe 'welt butting. knife from driver ba-r slide'3 l7 Sincethe head of the driver bar rests at this time upon the upper end of the :driver-b'arrslide, the: driver and its driving spring-are both raisedtogether until the latch 37 3- is tilted outwardly by en-- gagement of the camsurface- 383 with the roll 375 and'th'e head 359 eventually rests upon the roll 375.

A friction plug 399ris seated: in theface plate 345 and spring pressed, as shown in Fig. 5, against ithe forward side of the driver'barslide 347. This plug offers sufficientresistance to prevent movementofthe segment 391 during 'the'first part of the movement of the crank 145 to lower the cutter 309, and provides meansfor insuring that the cutter carrier 301isimoved toward and from the .welt rest about its pivotal connection with the cutter slide'293'. The-plug'per w The forward motion of the car-r rier 301 actuatesthe link395 to reversely ro tate the segment 391 and again raisewthe" forms a like functionto restrain the carrier from moving relatively to the slide at the start of the return movement, thus raising the knifefrom the welt before the carrier is advanced by the slide to its forward position ready for another cutting stroke.

Each driver bar slide is also provided with a longitudinal groove 350 in its inner face, shown best in Fig. 6, which forms an 7 upward extension of the tackway 3 18, the

function of which is to receive any extra tacks which mayhave inadvertently been discharged, which'may lie partially in the tack tube and tackway, and thus prevent jamming when the tacker slide is moved down-- ward;

The pivot 371 of the latch lever 373 is integral with the -lever and turnsin a bore made for its reception at the inner side of the faceplate 345. Therecess within the faceplateis of such dimensions that when the lever is turned to ahiorizontal position the pivot may be slipped sidewise out of the bore and the lever removed from the face plate.

It is sometimes desirable to turn the driving shaft 33 over by hand and to enable this to be done means is provided for locking the roll carrier 137 of the Horton clutch to the brake wheel 185 (see Fig. 12). The inner face of the brake wheel is recessed for the reception oi" the head lOl off the plunger 493, a spring 4105 being inserted behind the head of the plunger which normally tends to force the plunger head into a recess 407 made for its reception in the outer face of the roll carrier 137. The plunger head is normally maintained within the recess 4:06 by means of transverse pin 409 extending through the plunger at the outer side of the brake wheel and resting in a groove in a shelf ill arranged for this purpose. However, by pulling outwardly on the plunger handle 4.13. the pin 409 may be turned ninety degrees and its ends dropped into a deeper, second groove n5 which permits suflicient inward movement to the plunger, under the influence of the spring 405, to project the plunger head 4:01 into the recess 40? in the roll rarrier. This locks the roll carrier to the shaft and permits the shaft to be turned, by hand power, by means of a suitable wrench which may be applied to the shoulders 417 (Fig. 11) formed on the outer face 0 l the brake wheel.

The simplicity of operation of the machine will at once be apparent to those skilled in the art. No rotary cams are used, as power for driving the moving parts of both the welt butting and tacking mechanisms is derived from a single crank motion, and second crank motion actuates the tack supplying mechanism. The efiiciency of the machine is thereby enhanced and the speed of operation permitted to be increased over machines heretofore developed for the purposes described. The tacker operating mechanism is such that when the machine is at rest, with the drivers held withdrawn from the shoe, the driving spring is not under tension thus making it easy to dismantle this mechanism whenever desired. All necessary adjustments for properly positioning any size or style of shoe are provided, as well as provision for insuring that too great pressure will not be applied to the welt crease of any shoe that may be presented to the machine. The side frames are so constructed as to provide for carrying the drivers at an inclination to the shoe bottom as is usual, whereby the tacks are uniformly clenched on the iron heel plate oi the last. Throughout, the mechanism is simple, easily assembled and sturdy.

The nature and scope of the present invention having been indicated, and the preferred embodiment of the invention having been specifically described,

lVhat is claimed as new, is

1. A machine for operating on welted, unsoled shoes, having, in combination, connected welt butting and upper tacking mechanisms, and a single actuator connected to the welt butting mechanism for operating both of said mechanisms, one from the other.

2. A machine for operating on welted, unsoled shoes, having, in combination, welt butting and upper tacking mechanisms, at single actuator for operating both of said mechanisms, and connections between said mechanisms permitting a delayed action of the tacking mechanism.

3. A machine for operating on welted, unsoled shoes, having, in combination, welt butting and upper tacking mechanisms, including a cutter carrier and a tacker nozzle both movable toward and from the welt, connections between said carrier and nozzle, a single actuator for said parts, and means providing for the movement of said parts in sequence.

4. A machine for operating on welted, unsole d shoes, having, in combination, con nected welt butting and upper tacking mechanisms, including a cutter and a tack driver and driver spring, and a single actuator for moving the cutter to sever the welt and thereafter release the driver to the action of its spring. 7

5. A. machine for operating on welted, unsoled shoes, having, in combination, welt butting mechanism including a cutter, upper tacking mechanism including a tack driver, an actuator for the cutter, and connections between said mechanisms whereby the move ment of the welt butting mechanism operates the tack driver.

6. A machine for operating on welted, unsoled shoes, having, in combination, a welt butting cutter, means to operate said cutter, tacking mechanism including a tack driver spring, and connections providing for tensioning the spring from the movement oi the cutter operating mechanism.

7. A machine for operating on welted, un-

soled shoes, having, in combination, welt butting and upper tacking mechanisms including a welt cutter and a tacker nozzle both normally withdrawn to a position above the insole oi' the shoe, and a single actuator for advancing both of said parts into position for operating on the shoe.

8. A machine for operating on welted, unsoled shoes, having, in combination, a welt butting cutter slide, a cutter carrier sustained on said slide having a cutter, a tack driver slide having tack driving mechanism associated therewith normally withdrawn from the shoe, connections between said outter carrier and driver slide constructed to advance the driver slide when the cutter slide is actuated, and means for actuating the cutter slide.

9. A machine for operating on welted, unsoled shoes, having, in combination, a welt cutter movable toward and from the welt and longitudinally thereof, a tacker mechanism movable toward and from the shoe, and common means for causing the cutter to approach the welt and then travel longitudinally and for causing the tacker mechanism to approach the shoe and drive a tack at the completion of the cutter movements.

10. A welt butting machine, having, in combination, a cutter slide; a cutter carrier, having a cutter, mounted for rocking movement on said slide to move the cutter toward and from the welt; means for actuating the slide; and means for initially restraining the carrier from .moving with the slide whereby the carrier is rocked to carry the cutter toward the welt.

11. A welt butting machine, having, in combination, a cutter slide; means for reciprocating said slide longitudinally: a cutter carrier, having a cutter, pivotally mounted on said slide; and means for restraining the carrier from moving with the slide at the start of each stroke of the slide whereby the carrier is rocked about its pivotal connection to move the cutter toward and from the welt.

12. A welt butting machine, having, in combination, a cutter slide, a cutter carrier having a cutter, and a link connection be tween said parts constructed and arranged to permit the carrier to rock on the slide.

13. A welt'butting machine, having, in combination, a cutter slide, and a cutter carrier having a cutter, said parts being joined together by two links havin their connections to the carrier spaced Iarther apart than their connections to the slide.

14. A welt butting machine, having, in combination, a cutter slide, a cutter carrier having a cutter mounted on said slide, said carrier being held in spaced relation to the slide but relatively movable thereto, and means to limit the movement of the cutter relatively to the slide.

15. A welt butting machine, having, in combination, a cutter slide; a cutter carrier, having a cutter, above the slide; a link joining said parts permitting the carrier to rock toward and from the slide; anc a stop to limit the movement of the slide and determine the operative position of the cutter.

16. A welt butting machine, having, in combination, a cutter slide; a cutter carrier, having a cutter, above the slide; a link joining said parts permitting the carrier to rock toward and from the slide; and means for limiting the rocking movement of th carrier in both directions.

17. A welt butting machine, having, in combination, a cutter slide; a cutter carrier connected thereto near its forward end by a the carrier toward link between said parts; a similar link connecting the rear end of the carrier to the slide; a cutter supported by the carrier, means to move the slide; and means to restrain the carrier from movement with the slide for a time whereby the carrier first rocks on the links and slide.

18. A welt butting machine, having, in combination, a cutter slide; a cutter carrier. raving a cutter at its forward end, above the slide; a link connecting said parts near their forward ends; a similar link arranged at an angle to the first link connecting said parts near the their rear ends; means to reciprocate theslide; and means to restrain the carrier from movement with the slide for a time whereby the links are rocked and cutter sustained thereby, a tack pulling tool in advance of the cutter having an operating portion to engage beneath the head of a tack, and means for actuating the carrier.

2-0. A welt butting machine, having, in combination, a cutter carrier, a welt butting cutter sustained thereby, and a combined welt presser and tack puller sustained on the carrier inadvance of the cutter.

21. A welt butting machine, having, in combination, a support for the welt, a welt butting cutter arranged to travel in the plane of said support, a yieldingly mounted tack puller in advance of the cutter having an operating portion to engage beneath the head 0]": a tack, and means for operating said tools.

22. A welt butting machine, having, in

combination, a pair of welt butting cutters. a slide for each cutter movable longitudinally of the welt, a central sliding head connected to both of said slides, and a crank for reciprocating said head.

23. A welt butting machine, having, in combination, a pair of swinging heads, a slide for each head movable in a slide way therein, a welt butting cutter mounted on each slide, central head to which said slides are pivotally connected movable in a slide way in the machine frame, and a crank for reciprocating said head. i

24. A machine for operating on shoe bottoms, having, in combination, a pair of swinging heads normally held open, a welt support carried at the inner side of each head, and a stop carried by one head adapted to engage the other and predetermine the opening between said welt supports.

25. machine for operating on shoe bottoms, having, in combination, a pair of .articularly connected swinging heads car ried on vertical pivot, rods; a welt support on each head at the forward end thereof;

then moves with the yielding means for holding said heads swung open; and an adjustable stop positioned for engagement by one of the heads to limit the distance the heads swing under the influence of said yielding means.

26. A machine for operating on shoe bottoms, having, in combination, a pair of articularly connected swinging heads each car lied on a vertical pivot rod intermediate its front and rear end, a welt support on each head at its front end, means for normally holding the rear ends together, and a toggle mechanism for forcing the rear ends apart and causing an approach movement of the welt supports.

27. A machine for operating on shoe bottoms, having, in combination, a pair of articularly connected swinging heads each carried on a vertical pivot rod intermediate its front and rear end, a welt support on each head at its front end, means for normally holding the rear ends together, a toggle mechanism for forcing the rear ends apart and causing an approach movement of the welt supports, and means for operating said toggle mechanism through an interposed spring.

28. A machine for operating on shoe bottoms, having, in combination, a pair of swinging heads normally held open, a welt support carried by each head. means under control of the operative to swing said heads to cause the welt supports to engage the shoe, and means operated by the machine for locking said heads in the position to which they are swung.

29. A machine for operating on shoe bottoms, having, in combination, a pair of swinging heads normally held open, a welt support carried by each head, means under control of the operative to swing said heads to cause the welt supports to engage the shoe, and an automatically operating device for locking the heads from opening again actuated by said means to swing the heads.

30. In a machine for operating upon shoe bottoms, a welt support mounted for adjustment, longitudinally and transversely of the welt, and angularly relative to the face of the welt, and means for holding said support in adjusted position.

31. In a machine for operating upon shoe bottoms. a welt support mounted for adjustment longitudinally of the welt and angularly relative to the face of the welt, and means for holding said support in adjusted position.

32. In a machine for operating upon shoe bottoms, a welt support provided with a heel seat guard mounted for adjustment transversely with the guard and angularly relative to the guard.

In a machine for operatin upon shoe bottoms, a welt support provi ed with a heel seat guard and adjustable angularly about its juncture with the guard as a center.

3%. A welt butting machine, having, in. combination, welt butting mechanism, operating mechanism therefor including a crank on a normally idle crank shaft, a continuously driven sleeve on the crank shaft, a power shaft at an angle to the crank shaft provided with means for driving said sleeve, and means under the control of the operative for connecting the sleeve and shaft.

35. A welt butting machine, having, in combination, a pair of heads carrying welt butting cutters, means to reciprocate the cutters longitudinally of the welt, including a crank motion normally inactive, means to move the heads to bring the cutters into operating position, and mechanism controlled by said last named means to actuate the crank motion.

36. A welt butting machine, having, in combination, a pair of swinging heads mounted on pivots in the frame at the rear of the shoe, said heads carrying welt butting cutters at their forward ends, cutter operating mechanism, and common means to swing the heads to bring the cutters into operating position and actuate the cutter operating mechanism.

3?. A machine for operating on welted, unsoled shoes, having, in combination, a pair of swinging heads normally held open, welt butting and upper tacking mechanism carried by each head, means under control of the operative to swing said heads inward to bring said mechanisms over the shoe. means for locking the heads in their inward position, means for operating said mechanisms, and means controlled by said last named means to release the locking mecha nism after the welt has been butted and the upper tacked.

38. A machine for operating on welted, unsoled shoes, having, in combination, welt butting mechanism including a cutter normally removed from the shoe, a driving shaft, a clutch for operating the driving shaft, connections from the driving shaft for operating said mechanism, means for positioning said cutter above the welt preparatory to operating on the welt, and means for concurrently connecting the clutch to the driving shaft.

39. A machine for operating on welted, unsoled shoes, having, in combination, welt butting mechanism including a cutter normally removed from the shoe, a driving shaft, a clutch for operating the driving shaft, connections from the driving shaft for operating said mechanism, and a single means for positioning said cutter above the welt preparatory to operating on the welt and actuating the driving shaft.

40. A machine for operating on welted, unsoled shoes, having, in combination, welt butting mechanism normally removed from the shoe, a driving shalt, a clutch for operating the driving shaft, connections from the driving shaft for operating said mecha nism, a single means for positioning said mechanism for operating on the Welt and actuating the driving shaft, and means controlled by the rotation of the d *iving shaft for locking said mechanism in operating position and after the completion of the Welt butting operation releasing the lock and disconnecting the shaft from the clutch.

41. A machine for operating on Welted, unsoled shoes, having, in combination, a Welt butting cutter slide, a cutter carrier sustained on said slide having a cutter normally Withdrawn from the welt, a taclr driver slide having tack driving mechanism associated therewith normally Withdrawn from the shoe, connections between said cutter carrier and driver slide itor operating the latter from the former, and means for rendering said connections ineil ective to move the tack driving mechanism toward the shoe until the cutter carrier has placed the cutter in contact With the Welt.

42. A machine for operating on \velted, unsoled shoes, having, in combination, a Welt cutter movable toward and from the Welt, a

tacker mechanism movable toward and from the shoe, connections therehetween for operating one from the other, and means for initially restraining the tucker mechanism from moving until the \velt cutter has completed its movement.

as. A Welt butting machine having, in combination, a pair of Welt butting cutters, a pair of Welt supports for pressing in the Welt crease at each side of the shoe and positioning the Welt for the operation ofsaid cutters, means under control of the operative to actuate said Welt supports, and means 0perated by the machine for locking them against movement 'while the cutters are operated. I

A Welt butting machine having, in combination, a pair of elt butting cutters, a pair of Welt supports for pressing in the welt crease at each side of the shoe and posi tioning the Welt for the operation of said cutters, means under control of the opera tire to actuate said Welt supports, and means operatedby the machine for locking said supports against movement prior to the operation of said cutters and for freeing them 'RTEtQI the completion of said cutter operation.

4,5. A Welt butting machine having, in combination, a pair of welt butting cutters, a pair of Welt supports for pressing in the Welt crease at each side of the shoe and p0si tioning the wait for the-operation of said cutters, means under control of the operative to actuate said Welt supports, automatic means to operate said cutters, a normally inactive locking mechanism adapted 'When pull tacks. V

EDl VABD ERICKSON.

It is hereby certified that in Letters Patent N 0. 1,373,553, granted April 5, 1921,

upon the application of Edward Erickson, of Beverly, Massachusetts, for an improvement in Machines for Operating on Shoe-Bottoms, an error appears in the printed specification requiring correction as follows: Page 1, 1ine 79, for the Word trackei read tadcer; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 7th day of June, A. D., 1921.

[SEAL] KARL FENNING,

Acting Commissioner of Patents. 

